What cultural faux pas should I try to avoid making in Mamanuca Islands?

"When visiting the Mamanuca Islands in Fiji, it's important to respect the local customs and traditions. Dress modestly, especially when visiting villages. Women should cover their shoulders and knees, and it's considered disrespectful for anyone to wear hats or touch another person's head. Always ask for permission before taking photographs, especially of people or sacred sites. It's also considered rude to refuse food or drink when offered, as sharing food is a significant part of Fijian culture. Avoid walking through villages uninvited, as this is considered disrespectful. If you wish to visit a village, it's customary to bring a gift of kava, a traditional Fijian drink, for the village chief. Public displays of affection are generally frowned upon, especially in rural areas and villages. It's also important to remember that Sunday is a day of rest and worship in Fiji, so try to avoid scheduling activities that could disrupt this. Lastly, always use your right hand when giving or receiving items, as the left hand is considered unclean. This is especially important when participating in a kava ceremony," remarked another expat in Mamanuca Islands, Fiji.